What Causes Abnormal Noise from Car Brake Discs?
1 Answers
Abnormal noise from car brake discs is caused by worn brake pads, aged brake pads, or deformed brake discs. Below are the specific reasons for abnormal noise from car brake discs: Worn Brake Pads: The majority of abnormal braking noises come from brake pads, accounting for over 80% of cases. Abnormal noise from brake pads is usually caused by the scraping sound produced when the pads are worn down. In this case, simply replacing the brake pads will resolve the issue. Aged Brake Pads: This can be due to surface aging of the brake pads or sharp edges. In such situations, grinding the surface and edges of the brake pads can solve the problem. Deformed Brake Discs: Abnormal noise occurs when driving causes the brake discs to wobble from side to side, scraping against the brake pads. This can be resolved by grinding the brake discs to restore their roundness. Alternatively, noise can be caused by rust on the surface of the brake discs. When the brake pads scrape against the rust on the brake disc surface, the noise will usually disappear after a few minutes of driving as the rust is worn off during braking.